Printing slug slicing and shaving machine



y 1952 J. D. LITHGOW 2,596,338

PRINTING SLUG SLICING AND SHAVING MACHINE Filed July 16, 1948 2 SI-lEETS-SI-IEET' 2 7 a f ag 4 Inn ant c1 1' JHMES 11 LITHGEIW may Patented May 13, 1952 OFFICE PRINTING SLUG SLICING AND SHAVING MACHINE James Dobbie Lithgow, Hamilton,

Ontario, Canada Application July 16, 1948, Serial No. 38,985 In Canada July 23, 1947 2 Claims.

My invention relates to a machine for slicing and shaving lead printing slugs, and the object of my invention is to provide a machine wherein the type carrying face of a slug may be sliced from the main body of the slug and such slice shaved to the correct height whereby it may be immediately placed upon the top of a build-up slug within a type set-up without the necessity of making any further height adjustment tobring its type face to the level of the faces of the rest of the type assembly.

In printing practice, as in the production of newspapers, the type face is cast upon the face of lead slugs which are in the vicinity of one inch high, and the slugs are assembled and locked up to make the iorme. The matrix fiong is produced from the forme, and the printing plate cast from the matrix flong.

It will be appreciated by those skilled in the art, that in standard practice, large slugs such as advertising copy, are very often quite heavy and awkward to handle, and furthermore, where inserts have to be made, it is necessary to cut out portions of the slug through its entire thickness for the reception of the insert slug which then has to be aligned and wedged in place, which steps of necessity take valuable time, when meeting the deadline in newspaper printing.

The object of this invention is to simplify the work entailed in alterations or adjustments in slugs or their arrangements, and to attain this end, I in certain cases, slice the type carrying face from off the slug and provide build-up slugs upon which the type carrying slices rest, the combination height of the type carrying slice and the build-up slug being equal to the height of a standard type carrying slug. To carry out this operation I provide a machine adapted to gripa slug and pass it through a saw whereby the type carrying slice is cut oil, and to then pass the cut face of such slice across a shaving blade whereby any saw out irregularities are removed and the slice brought to the exact height.

A further object of my invention is to furnish a machine wherein the slug is supported upon a reciprocable member, the saw being positioned in the path of such member in one direction of its movement whereby the slice is cut oif. The slug. shaving blade engages the cut surface of the slice in the other direction of the members movement.

With the foregoing and other objects in view, as shall hereinafter appear, my invention consists of a printing slug slicing and shaving machine all as hereinafter more particularly described and illustrated in the accompanying drawings in which:

Fig. 1 is a front elevational view of my machine.

Fig. 2 is an end elevational view thereof.

Fig. 3 is a vertical longitudinal cross-sectional view through the portion of the machine carrying the saw and shaving blade, and showing the slug mounted thereon and passing into engagement with the'saw, as indicated by the arrow.

Fig. 4 is a similar view to Fig. 3 showing the completion of the slicing of the slug by the saw.

Fig. 5 is a similar view to Fig. 3 showing the cut off portion of the slug removed and the remaining slug slice being shaved by the blade in the return movement as indicated by the arrow.

Fig. 6 is a plan view of a type slug.

Fig. 7 is a side elevational view thereof, and

Fig. 8 is a side elevational view of the slice after it has been cut away from the slug along the dotted line shown in Fig. 7.

Like characters of reference indicate corresponding parts in the diiferent views of the drawing.

While m invention fills a very definite need in the printing industry, it is simple in construction and in operation. The machine as illustrated in Figs. 1 and 2 is carried upon a suitable supporting frame, which is not shown, and consists of a bed plate 2 having a longitudinal groove 3 therein, within which a vice 4 is slidably contained. The vice 4 is formed with a moveable jaw 5 which is actuated in clamping relation to the back portion 6 of the vice by a screw 1 which is threaded into the back portion 6 and carries a knurled knob 8 on its outer end.

The vice 4 is designed to travel to and fro on the bed plate 2 under the influence of a travelling nut which is carried upon a screw operated by a handle 9. The particular fitment of the nut and screw assembly is not shown as this construction follows standard machine tool practice.

A circular saw I0 is positioned above the upper face of the vice at one end thereof and is provided to engage a slug carried in the vice when the vice is 'moved towards and underneath the saw. The saw is carried upon the upper end of a vertical spindle H, the lower end of which spindle carries a V-belt pulley 12 connected by a V-belt 13 to a pulley M on an electric motor I5. A vertical bracket [6 extends upwardly from the bed plate 2 and is furnished to carry the shaving blade mechanism. A pair of bearings l1 and I8 are mounted upon the upper face of the bracket and carry a spindle l9 upon the forward end of which a disc 20 is eccentrically blade supporting member 23 which is Vertically slidable thereon, and the member 2'3 is linked to the collar 21 by a threaded rod 24. The upper end of the rod 24 is pivotly connected to the collar 2| and its lower end pivotly connected to the member 23. As the disc 2li,oarrying the'col lar 2|, is eccentrically mounted upon the spindle l9, partial rotation of the spindle l9'wi11'cause the slidable member 23 to move downwardly into the position shown in Fig. 1.

The slidable member 23 carries a shaving'blade 25, which is supported at a suitable inclinatidn'at one end of the member 23 by means ofa pair of set screws 26 passing through slots 21 in the blade and threaded into the member 23.

In order to provide the necessary. adjustments of height of theslidable blade carrying member 23, the lower end of the link rod 24 is threaded into a pivotal connection in the member 23, and the upper, end of the; rod is threaded into a pivotal connection in the collar 2 I. so that rotation of. the rod 24 by'means of its knurled knob 28 moves. the slidable member, 23' either towards or away from the, collar 2|. The. link rod 24 is secured in its adjusted position by a lock nut 29.

When a slugijl such as illustrated in i 7 is being sliced, it is placedwith its type face 31, resting upon the surface 32 of thevice. The vice, jaw. 5 s than ti htened up by, turnin the knob 8 and screw 1, so that the slug is tightly pped T e. motor I5, is then, switched-on to rotate the ir u ar saw l0. and the vice s ma to travel along the bed plate 2, under the action of rotating the handle 9, so that the saw, enga es the end of the slug, as illustrated in Figs. 1 and 3.

The ravell n m v ment of the vice is continued until the slug has been sawn through, asv illusrate in Fi During his oimation,v the sli ock 22 s i the uppermost position as illus- Hated i F l, th t is Withthe shaving blade. 2 clear. th s ne W e the s u as been sli ed he motorahd s wv ar stopp d and t sawed Por ion 39A s s own R 4, is i ted off an i po e The h ndle. 2.2 s hen. swung in a counte :v

c ockw se direc o w er by h s e I9. a

dise 2!) are rotated. As the disc Zllis positioned ecoentricauy upon the p nd e l9, itsrotation will move the collar 2| downwardly, thus the sliding membe 2. il h l o mov v ownward h ou h the med um, of h lihh d 5-, When, h l h w. me r Ziee YQd lphln' were. e lle xtent; he t n ed e o he. s a i e ladew l h i a posi o o. s v

theslfi e remain n i he cei h oo f ij he ghti To ca ry u t e ari ra ion th h d Q is turne d to traveltlrlev vicetowards the" blade whereby'the edge of the blade'will engagefand shave the top of the slice, asfilljustrated in Fig. 5; this operationis completed'the'vice is loosened and the slice which carries the type is new" ready for fitment within the'forn1l"" In positioning the slice within the formeiit laid the a hi a Wildh. la e eigh 4 which in combination with the height of the slice is the same as the height of the other slugs in the forme so that no further adjusting is necessary. The slice can be readily anchored in place through the use of adhesive tape or by any similar quick adhesive method. When the shaving operation is completed it is only necessary to turn the handle 22 in a clockwise direction whereby the slidable member 23 and blade 25 are lifted to. their uppermost position, at which time another slug can be locked in the vice and another slicing andshaving operation carried out.

From the foregoing description, it will be apparent that I have devised a very simple and practical machine for slicing and shaving printing slugs and although I have shown a particular bodiment of my invention it is to be underst' d that I may make such changes'and alterations as I may at any time deem necessary Without departing from the spirit of my invention as set forth in the appended claims.

What I claim as my invention is:

l- A combined s u s icing and shavi machine. ompri a reciproc b slug gr ppin v c mea s. fo recip e v ce in su cessive forward and return directions in the same plane, a, saw positioned above the vice and in the path of forward movement Of a slug con: ain i e i e to tr v rs ly awa ice rom the slug lengthwise during said forward movement with the slice remaining gripped on the vice, a slidable member, a shaving blade carried upon the slidable member, a member extending at right angles to the path of travel of the vice and upon which the shaving blade slidable meme e i moun d a r t ta e m i m fo as hating the shaving blade slidable member, a link rod extending from the rotatable mechanism to the shaving blade slidable member, and means for a st he e th of h link ro 2 A ombi ed Slug slicing n sh vihs, m.- Qhiha e mhr e a r ci ro ug ai ehih ice m an for c r cat t vi e in 99 sive forward and return directions in the same ne a po it on bo t e v a d ihl the path oi o w vem n of a slug 9 ained i evi'ca o. transv r e saw a S i e h le. the slug en thwis dur g sa d o war movemen w v e l t i hl ih sh pe oh the vice. a s dab me ber, a sha i lade: ha rie upon the slidable member, a member extending t rig n e he th t tr v t e ace and o which, the sh v ad i h e m e-1 her is mounthd', arotatable eccentric mechanism for actuatingthe shaving blade slidable member, .1 2 odszstehd he' m he ble m ohe nism to the shaving blade slidable member, and

threa d meaha r d us'fi hg th ahsihfo as V JAM-Es noeemmmorovw aaa aaNo s CITED 7 The following references are of record, in the fileofthis patent: V

vhii h STATES PATENTS. 

